Phys. Rev. A 75, 050304(R) (2007) [4 pages]Implementation scheme of controlled SWAP gates for quantum fingerprinting and photonic quantum computation
We propose a scheme to implement quantum controlled SWAP gates by directing single-photon pulses to a two-sided cavity with a single trapped atom. The resultant gates can be used to realize quantum fingerprinting and universal photonic quantum computation. We present a theoretical model for our scheme and analyze its performance under practical noise, including spontaneous emission and randomness of atom-cavity coupling strength. It is shown that our scheme should be robust against practical imperfections in current cavity QED experiment setup. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.75.050304
DOI:
10.1103/PhysRevA.75.050304
PACS:
03.67.Lx, 42.50.Gy, 42.50.Pq
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